Quick ONT or ONU troubleshooting

The signal shows a full signal, but the network speed is still slow?
What does it mean when the ONU indicator keeps flashing?

1.POWER #

Plug in and light up, showing whether ONU is connected to power, ONU without power connection is useless.

Color change:
Green always on: the device is connected to the power supply
Off: the device is not plugged in, or ONU is bad

Solution:
If the power supply is normally connected, the POWER indicator still does not light up, we recommend that you try replacing the ONU with a new one.

2.PON indicator #

Used to indicate the PON link status and OLT registration status.

Color change:
Green is always on: the device has been registered to the OLT, which is a normal situation
Blinking green: the ONU is not configured or data is lost
Off: the device is not registered to the OLT

Solution:
You can contact the operator or customer service to solve the problem

3.LOS indicator #

Used to indicate the link status of the optical link.

Color change:
Red light on: optical link is not working
Red blinking: the device has not received the optical signal
Off: the device has received the optical signal

Solution:
If the optical path is not working, you need to see if there is a large bend in the fiber; or see if the end of the fiber is not connected somewhere. If you can not get it, you can contact the operator to solve.

4.LAN indicator #

This light is generally used to indicate the connection between ONU and computer.

Color change:
Always green: The port is normally connected to the terminal
Blinking green: The port is exchanging data with the terminal
Off: The port is idle, or abnormally connected to the terminal.

Solution:
If the wired terminal cannot be connected to the network, you are recommended to plug and unplug it again or access a new LAN port.

5.TEL/Phone indicator #

TEL indicator is also called voice phone indicator, which indicates the connection status of ONU and telephone at the local end. Description: This indicator is only available on the front side of the ONU if there is a telephone interface on the back of the ONU.

Color change:
Always on: The phone is successfully registered in the network
Flashing: There is voice data exchange
Off: Registration failed, or no phone connection